*{
  margin: 0;
  padding: 0;
}
    a{
      text-decoration: none;
      color: #666;
    }
    .fl{float: left;}
    .fr{float: right;}
    .clearfix::after,
    .clearfix::before{
      content: '';
      display: block;
      visibility: hidden;
      width: 0;
      height: 0;
      clear: both;
    }
    .container{
      margin: 0 auto;
      max-width: 980px;
    }